Issue is still happening for me. Trying to add the build for review returns App Store Connect error (Network inspector)
"status" : "409",
"code" : "STATE_ERROR.BUILD_INDICATES_GAME_CENTER_DISABLED",
"title" : "Your build indicates game center is disabled.",
"detail" : "Your appStoreVersion has gameCenterConfigurations relationship but build is missing com.apple.developer.game-center key."
The game center entitlement though does exist in the build - going to the selected build details in App Store Connect shows it's there and set to true.
Re-enabling capability does not work, re-enabling automatic signing does not work, Xcode is setup properly.
Topic:
App Store Distribution & Marketing
SubTopic:
App Store Connect
Tags: